gum balls, rum balls, beach balls, snow balls, super balls, softballs, soccer balls, footballs, basketballs, billiard balls, cue balls, ball bearings, malted milk balls, hair balls, bowling balls, bocce balls, matzo balls, meatballs, magic eight balls, formal balls, tether balls, Nerf balls, stress balls, golf balls, moth balls, tennis balls, crab balls, medicine balls, sour balls, volleyballs, cheese balls, popcorn balls, rubber balls, eyeballs, melon balls, benwa balls, blue balls, crystal balls, Styrofoam balls.
Why no, I don't have anything better to do.